abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

 This paper studies the non linear relationship between energy prices, natural resources rent opportunities and renewable energy consumption under different economic growth rates for OPEC member countries during the 2005-2016 period.  Using a panel smooth transition regression (PSTR) model, our findings prove a non-linear relationship between renewable energy consumption and the rate of economi...